Exterior surface of a container sidewall



FIG. 1 is a top, left side, front perspective view of an exterior surface of a container sidewall showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof; and,

FIG. 5 is a left side elevational view thereof.

The front, partially seen in FIG. 1, forms a mirror image of the rear seen in FIG. 3. The neck shown at the top of FIGS. 1 through 5 in broken lines is for illustrative purposes only and forms no part of the claimed invention. The bottom not shown forms no part of the invention. 

The ornamental design for a exterior surface of a container sidewall, as shown and described. 